In this study, we performed association tests on previously reported variants responsible for variations of glycemic indexes (fasting plasma glucose [FPG] and glycated hemoglobin [HbA1c]), T2D, and liver enzymes (alanine aminotransferase [ALT], aspartate aminotransferase [AST], and γ-glutamyl transferase [GGT]) in East Asians. Here, GPT is linked to type 2 diabetes mellitus.